Doing a gradient experiment with two braids.
First ply is 1/4 Get Off My Rainbow and 3/4 Naked. Second ply is 1/2 Get Off My Rainbow and 1/2 Naked. Third ply is 3/4 Get Off My Rainbow and 1/4 Naked. The Shetland/Pearl/Silk is a lot less lofty though, so it might not work out the way I anticipate!